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Rotary heat exchanger
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Patent number 4,331,198
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Issue date May 25, 1982
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Midland-Ross Corporation
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Tamara M. Michalska
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F28 - HEAT EXCHANGE IN GENERAL
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Sector plate support
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Patent number 4,122,891
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Issue date Oct 31, 1978
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The Air Preheater Company, Inc.
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Roderick J. Baker
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F28 - HEAT EXCHANGE IN GENERAL
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Sealing plate support
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Patent number 4,024,907
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Issue date May 24, 1977
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The Air Preheater Company, Inc.
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Tadek Brzytwa
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F28 - HEAT EXCHANGE IN GENERAL
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3880225
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Patent number 3,880,225
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Issue date Apr 29, 1975
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F28 - HEAT EXCHANGE IN GENERAL
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3743008
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Patent number 3,743,008
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Issue date Jul 3, 1973
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F28 - HEAT EXCHANGE IN GENERAL
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3650317
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Patent number 3,650,317
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Issue date Mar 21, 1972
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F28 - HEAT EXCHANGE IN GENERAL
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3587724
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Patent number 3,587,724
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Issue date Jun 28, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3516482
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Patent number 3,516,482
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Issue date Jun 23, 1970
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F28 - HEAT EXCHANGE IN GENERAL
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3478816
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Patent number 3,478,816
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Issue date Nov 18, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3476174
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Patent number 3,476,174
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Issue date Nov 4, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3467174
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Patent number 3,467,174
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Issue date Sep 16, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3456717
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Patent number 3,456,717
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Issue date Jul 22, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3448793
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Patent number 3,448,793
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Issue date Jun 10, 1969
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F28 - HEAT EXCHANGE IN GENERAL
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3401740
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Patent number 3,401,740
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Issue date Sep 17, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3384156
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Patent number 3,384,156
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Issue date May 21, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3374829
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Patent number 3,374,829
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Issue date Mar 26, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3373797
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Patent number 3,373,797
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Issue date Mar 19, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3368611
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Patent number 3,368,611
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Issue date Feb 13, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3368612
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Patent number 3,368,612
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Issue date Feb 13, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3367405
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Patent number 3,367,405
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Issue date Feb 6, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3315729
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Patent number 3,315,729
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Issue date Apr 25, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3311162
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Patent number 3,311,162
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Issue date Mar 28, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3298429
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Patent number 3,298,429
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Issue date Jan 17, 1967
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F28 - HEAT EXCHANGE IN GENERAL
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3294156
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Patent number 3,294,156
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Issue date Dec 27, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3280895
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Patent number 3,280,895
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Issue date Oct 25, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3250316
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Patent number 3,250,316
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Issue date May 10, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3216487
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Patent number 3,216,487
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Issue date Nov 9, 1965
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F28 - HEAT EXCHANGE IN GENERAL